Are all sealed batteries agm

No, not all sealed batteries are AGM (Absorbent Glass Mat) batteries. Sealed batteries can include various types, such as gel batteries and lithium-ion batteries, in addition to AGM. AGM batteries are a specific type of lead-acid battery that uses a fiberglass mat to absorb the electrolyte, making them maintenance-free and spill-proof. Each type has distinct characteristics and applications suited to different needs.